diff --git a/src/data/frustum.vert b/src/data/frustum.vert
index 38a0e588..4742ee49 100644
--- a/src/data/frustum.vert
+++ b/src/data/frustum.vert
@@ -8,6 +8,8 @@ layout(push_constant, row_major) uniform PCR {
 	// NOTE: offset = 76 already used by fragment shader.
 } pcr;
 
+layout(location = 0) out vec3 outPos;
+
 void main() {
 	// Buffer-free cube line list generation. Needs 24 vertices in draw call
 	int mask = (1 << gl_VertexIndex);
@@ -24,5 +26,6 @@ void main() {
 		y *= z;
 	}
 
+	outPos = vec3(x, y, z);
     gl_Position = pcr.viewProjMtx * vec4(x, y, z, 1.0);
 }
diff --git a/src/gui/command.cpp b/src/gui/command.cpp
index 54e4eec0..f8c18f84 100644
--- a/src/gui/command.cpp
+++ b/src/gui/command.cpp
@@ -1532,7 +1532,7 @@ void CommandViewer::displayCommand() {
 			dlg_assertm(vertex, "TODO Graphics pipeline without vertex shader");
 			if(vertex) {
 				if(ImGui::Button("Debug vertex shader")) {
-					if(dcmd->state.pipe) {
+					if(dcmd->state->pipe) {
 						auto mod = copySpecializeSpirv(*vertex);
 						shaderDebugger_.select(vertex->stage, std::move(mod));
 						view_ = IOView::shader;
diff --git a/src/gui/pipes.cpp b/src/gui/pipes.cpp
index 3a18a798..2e2f3528 100644
--- a/src/gui/pipes.cpp
+++ b/src/gui/pipes.cpp
@@ -64,10 +64,23 @@ void initPipes(Device& dev,
 		VkPipelineLayout histogramPipeLayout,
 		Gui::Pipelines& dstPipes, bool manualSRGB) {
 	std::vector<vku::ShaderModule> modules;
-	auto createShaderMod = [&](span<const u32> spv) {
-		return modules.emplace_back(dev, spv).vkHandle();
+	auto createShaderModNamed = [&](span<const u32> spv, const char* name) {
+		auto ret = modules.emplace_back(dev, spv).vkHandle();
+		if(dev.dispatch.SetDebugUtilsObjectNameEXT) {
+			VkDebugUtilsObjectNameInfoEXT ni {};
+			ni.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_OBJECT_NAME_INFO_EXT;
+			ni.pObjectName = name;
+			ni.objectHandle = handleToU64(ret);
+			ni.objectType = VK_OBJECT_TYPE_SHADER_MODULE;
+			dev.dispatch.SetDebugUtilsObjectNameEXT(dev.handle,
+				&ni);
+		}
+		return ret;
 	};
 
+#define createShaderMod(spv) createShaderModNamed(spv, "vil:" #spv)
+#define initStages(spv) initStagesNamed(spv, "vil:" #spv)
+
 	auto vertModule = createShaderMod(gui_vert_spv_data);
 
 	VkSpecializationMapEntry manualSRGBEntry {};
@@ -82,8 +95,8 @@ void initPipes(Device& dev,
 	srgbSpec.mapEntryCount = 1u;
 	srgbSpec.pMapEntries = &manualSRGBEntry;
 
-	auto initStages = [&](span<const u32> fragSpv) {
-		VkShaderModule fragModule = createShaderMod(fragSpv);
+	auto initStagesNamed = [&](span<const u32> fragSpv, const char* name) {
+		VkShaderModule fragModule = createShaderModNamed(fragSpv, name);
 
 		std::array<VkPipelineShaderStageCreateInfo, 2> ret {};
 		ret[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;